JP2014032208A - Intelligent probe - Google Patents

Abstract

PROBLEM TO BE SOLVED: To enable repeatable, fast, easy, and error-free probe swapping on a CMM.SOLUTION: The present system, method, article of manufacture, software, and apparatus is an intelligent probe system or components thereof. In some embodiment, an IC chip is embedded in one or more interchangeable probes so as to enable repeatable, fast, easy, and error-free probe swapping on a CMM.

Description

  The present invention generally relates to a measuring apparatus such as a coordinate measuring machine (CMM) and a measuring method using the measuring apparatus.

  The CMM is an apparatus used for component measurement in a component manufacturing process or the like. The measurement is performed, for example, by physically bringing the tip of the probe (probe end) into contact with the measurement target component or via a non-contact measurement unit. Further, in the CMM in which the robot arm segments (CMM arms) are connected to each other by a joint, a member such as an angle encoder can be incorporated in the joint, so that the probe end position is measured according to a coordinate system designated by the user as appropriate. be able to. Further, the operation of the CMM can be coordinated with, for example, a computer-aided design (CAD) system or its software.

  The type of probe or end effector used varies depending on the application. For example, in order to measure a difficult-to-reach part on a measurement object with the CMM, a probe having a size or shape suitable for it must be used. Therefore, it is common to replace the probe according to the property of the measurement target part.

  However, calibration when using CMM often takes time. In particular, when the probe on the CMM is replaced with a probe having a different size, probe recalibration is usually required. For example, in an assembly line environment, it can be problematic to take the CMM offline for 20 minutes and replace the probe end to recalibrate. Therefore, manufacturers etc. expect CMM that can accurately replace the probe and has a sufficiently short recalibration down time (line downtime). Technological innovation is necessary.

  The applicant of the present application has acquired several US patents belonging to CMM or related fields. For example, it is patent documents 1-7. With this reference, all matters described in these documents are incorporated in the present application.

US Pat. No. 5,611,147 US Pat. No. 5,794,356 US Pat. No. 6,612,044 US Pat. No. 6,820,346 US Pat. No. 6,796,048 US Pat. No. 6,920,697 US Pat. No. 6,965,843 US Pat. No. 6,931,745 US Pat. No. 5,829,148

  Among currently used systems, for example, a product of the Romer (registered trademark; not shown below) SimcorInfinite series employs a pin identification system that changes the pin arrangement for each replaceable probe. In this system, when replacing a set of probes on a CMM, the CMM identifies individual probes based on a unique physical or electrical pinout for each probe. In order to perform the identification, the pin arrangement must be stored in advance in, for example, a memory in the CMM. Therefore, in this system, the number of probes that can be mounted is limited by the number of types of pin arrangements that can be realized. Probes of the same size and type cannot be distinguished. In addition, unless the initial setup and input are performed for the memory in the CMM, for example, the dimensions and characteristics of the end effector are not registered in the database, and the database cannot be used. Therefore, the field where this system can be used is limited. It is not a fully automatic recognition system, and lacks immediacy, ease of handling and expandability. Further, on-the-fly setting during measurement, that is, dynamic setting cannot be performed. For example, when using a specific algorithm or data for a probe, the Romer probe does not have a processor or memory, so an updated version of the algorithm or data used by the probe is an algorithm or data in the probe. It is not easy to update.

  The system, method, product and apparatus according to the present invention provide an intelligent probe system. In an embodiment of the present invention, since an integrated circuit (IC) chip is embedded in one or a plurality of replaceable probes, the probe replacement on the CMM can be performed quickly, easily and many times. Can be done without error.

FIG. 6 is a front perspective view of a CMM having an articulated arm and a computer attached thereto. It is a rear perspective view of a replaceable probe with a built-in integrated circuit. It is a front perspective view of the exchange probe attachment place on CMM. It is a surface view of the concentric annular commutator in 2nd Embodiment. It is a reverse view of the concentric annular commutator in 2nd Embodiment. It is a perspective view of the concentric annular commutator type connection part in a 2nd embodiment. It is an exploded view of the probe main body with a concentric annular commutator type connection part in a 2nd embodiment. It is an exploded view of the probe main body with a concentric annular commutator type connection part in a 2nd embodiment. It is a notch figure of the probe main body with a concentric annular commutator type connection part in a 2nd embodiment. It is sectional drawing of the probe main body with a concentric annular commutator type connection part in 2nd Embodiment. It is a perspective view of the probe main part with a concentric annular commutator type connection part in a 2nd embodiment. It is a rear perspective view of the probe main body with a wireless connection part in 3rd Embodiment. It is a front perspective view of the CMM arm with a wireless connection part in 3rd Embodiment. It is a figure which shows an example of the display screen produced | generated by software in this system.

  Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings. In addition, the description and drawing description are only illustrations, and are not intended to limit the gist. In the drawings, similar members are denoted by the same reference numerals.

  FIG. 1 shows the overall configuration of the CMM 30.

  2 and 3 show a first embodiment of an intelligent probe system (hereinafter “the present system”) according to the present invention. In this embodiment, an IC chip 15 is embedded in a replaceable probe 10 and each probe 10 is “electronically serialized” by the chip 15 and an electronic serial number. Therefore, probe replacement on the CMM 30 can be performed quickly, easily, and without error any number of times. Further, the chip 15 has a memory (buffer). The memory can store information about the attributes of the probe 10, the characteristics of the probe 10, the calibration state of the CMM 30, and the like.

  Also, as shown in FIG. 10, when using a normal or ignorant probe end 10a, the probe 10 is inserted as an adapter between the probe end 10a and the CMM arm 20, and the main body of the probe 10 is used. The IC chip 15 can also be incorporated in. In this way, there is no fine restriction on the position of the IC chip, and it can be provided at various places in the system.

  Furthermore, in this embodiment, when the probe 10 shown in FIG. 2 is mounted on the CMM arm 20, only the size and type of the probe 10 are recognized based on the information on the IC chip 15 embedded therein. Instead, for example, a calibration data set is formed for each combination of the probe 10 and the arm 20. Therefore, even when the same probe 10 is reused by a plurality of arms 20, a calibration data set is formed so as to be unique for the combination of the probe 10 (the serial number) and the arm 20, so that the accuracy is maximized. Can be increased.

  The calibration data set is generated as needed through calibration of the probe 10. The newly generated data set can be stored and stored on the CMM arm 20 or can be stored in the memory of the probe 10 side IC chip 15. Which one to use can be determined according to the application. The arm 20 can be configured to store data for a plurality of probes in one arm 20. If desired, all necessary data may be stored on the probe 10 side.

  As described above, the present system is configured in such a manner that the IC chip 15 is arranged somewhere inside or outside the probe 10 and information such as calibration data and probe data can be transferred from a memory on the chip 15 such as an EEPROM. The probe 10 is intelligent. What information is stored depends on individual configuration settings and programs. For example, probe end diameter, coefficient of thermal expansion (CTE), probe type (eg type of hard probe, mechanical touch probe, etc.), ball diameter, Various information such as “x, y, x, offset” or 6-degree-of-freedom coordinates when a probe or individual CMM is mounted can be stored, and any combination thereof can be stored. Such information is associated with a serial number or stored in a corresponding data format so that necessary calibration data and probe data are automatically transferred without omission when the intelligent probe 10 is mounted on the CMM arm 20. FIG. 14 shows an example of a display screen (screen shot) generated by software in this system. In this example, the serial number of the probe 10 is read, and it is displayed that the probe end diameter is 6 mm and its CTE is 1.0e-009. However, which data field is to be read can be determined by the user according to his / her preference and configuration settings, and the present invention should not be construed as limited to the configuration settings shown in this screen shot.

  In addition, the calibration of the CMM arm 20 and the like can be performed by measuring a reference object such as a calibration ball or hole with this system. Since the method is well known in the field of robotics, detailed description thereof is omitted.

  Although not shown, the shape and form of the probe vary depending on the application. Here, in this system, since the probe 10 is intelligent, replacement of the probe 10 can be performed at any time without recalibration. Specifically, when the probe 10 is mounted on the electrical connection 40 in which a plurality of electrodes 60 are arranged in appropriate orientations, the serial number of the probe 10 is automatically detected, and the system computer 50 and other appropriate components are detected. An authentic calibration data set is called by the member, and computer-aided measurement (CAM) measurement software or the like operates the CMM 30 based on the calibration data set. Since the probe 10 is electronically serialized, it is not necessary to select the probe 10 on the menu. As described above, the probe 10 is automatically recognized or installed, and the probe 10 and the CMM arm 20 to which the probe 10 is attached are automatically calibrated in a plug-and-play manner. This is because the system refers to the serial number of the probe 10 and associates it with the kinematics of the probe.

  Moreover, when implementing this invention, the connection part thru | or connection part of various structures can be used. The connection portion will be described below by way of example, but other types or structures of connection portions may be used when carrying out the present invention.

  First, in the first embodiment shown in FIGS. 2 and 3, a ball kinematic mount type connecting portion having three balls 70 and one pin 80 is used. In this embodiment, the pin 80 is inserted into the hole 81 and the position of the electrode 60 is adjusted, and then the probe 10 is fixed on the electrical connection portion 40 of the CMM arm 20 by rotating and attaching the annular screwing portion 85. To do.

  Note that in FIG. 2, the IC chip 15 is incorporated in the probe end 10a. Although this is convenient, most of the probe ends that have been manufactured by various probe end manufacturers so far are ignorant probe ends. When such a non-intelligent probe end is used as the probe end 10a, the probe end 10a may be attached to a probe body (not shown) in which a writable IC chip 15 is incorporated. Prior to that, it is necessary to write information on the characteristics and dimensions of the probe end 10a on the chip 15, but if this is done, the probe (with the probe end 10a attached to the main body) is substantially effective. It becomes the intelligent probe 10. In this case, since any non-intelligent probe manufactured by anyone becomes the intelligent probe 10 simply by being attached to the probe body, it can be said that the probe body is a kind of adapter. FIG. 10 clearly shows an example in which the intelligent probe 10 is formed by fitting the screw-type non-intelligent probe end 10a to the probe body.

  Next, in the second embodiment shown in FIGS. 4 to 9, a connection portion having a structure in which the electrode 60 and the concentric annular commutator 100 are electrically connected only by screwing the probe 10 is employed. That is, the probe 10 can be mounted on the CMM arm 20 only by screwing. In the present embodiment, four electrodes 60 are provided.

  Furthermore, the probe 10 can be dynamically configured. That is, various information stored in the program, calibration data, software, data, algorithm, and the like can be easily updated or changed. For example, it is assumed that specific data that is the probe 10 is used. In that case, by using the memory function of the IC chip 15 embedded in the probe 10 or the like, the data can be easily updated simply by writing the data used by the probe 10 into the probe 10. . Further, the updated version data is held on the system computer 50 or the constituent members of the CMM 30 so that the information on the IC chip 15 is updated when the probe 10 is attached to the CMM arm 20. Good. The effect of time saving by this is remarkable, and the improvement of the flexibility compared with the conventional non-intelligent probe is also remarkable.

  When the probe 10 with the serial number is mounted on the CMM arm 20 and the calibration data has not been collected, the user must calibrate the probe 10. However, if the data obtained thereby is stored in some appropriate place, for example, in the probe 10, it is not necessary to perform subsequent probe calibration for the combination of the probe 10 and the arm 20.

  Furthermore, when a normal probe to which no serial number is assigned is desired to be used on the CMM arm 20, a connection cover may be attached. In that case, it will be necessary to manually select the probe dimensions on the menu.

  Accordingly, the user of the present system can quickly replace the probe 10 with another size or shape, and thus can measure various shapes with suitable accuracy. Without this system, the system must be recalibrated whenever the probe is replaced, but with this system, the probe 10 can be replaced at any time without probe recalibration.

  In addition, since a calibration data set is created for each arm / probe pair, even when one probe is reused by a plurality of CMM arms 20, the unique probe 10 (serial number) and the pair of arms are unique. Calibration data sets can be used to maximize accuracy.

  Further, the calibration data set is created as needed through probe calibration. The new calibration data set may be stored on the CMM arm 20 or may be stored in the probe 10 itself.

  Further, a user who has a suspicion that the newly mounted probe 10 is not properly calibrated can execute the probe calibration. As a result, the number of steps is increased by one. However, since the probe 10 according to the present system is an intelligent probe with a built-in IC chip 15, the probe calibration is simplified. This is because it is not necessary to recalculate or re-measure known or invariant numerical values such as probe end diameter and probe length during probe calibration.

  Furthermore, the data about the probe 10 calibrated on the CMM arm 20 can be stored in the arm 20 and can be displayed on the display screen of the system computer 50 or updated on the screen. it can. A database (not shown) for that purpose may be provided in the CMM 30 or may be provided outside the CMM 30. Access to the database can be made, for example, by wireless or other means.

  In addition, this system can be basically applied to any type of probe. In particular, a remodeling type Renishaw (registered trademark; hereinafter omitted) probe that uses contact switch technology can increase its value by applying the technology according to the present invention. For example, the accuracy and performance of the system can be improved by storing in the IC chip 15 information on changes in probe performance depending on the contact direction.

  This system can be further applied to various CMMs, measurement systems, and the like, such as the systems described in Patent Documents 6, 8, and 9. Moreover, the system can be improved by the application.

  In the present system, a question can be periodically issued to confirm the presence or absence of the probe 10. Thereby, it can be confirmed that the probe 10 has not been removed or replaced, and the integrity of the system and individual measurement results can be ensured.

  The software for setting the operation of the CMM arm 20 may be created so that a probe other than the intelligent probe 10 can be used. However, a probe that is not the intelligent probe 10 must be calibrated before use, and since it cannot be detected that it has been removed, it can be a common error source. On the other hand, when the intelligent probe 10 according to the present system is mounted, the operation of the application can be automatically set by the software.

  When the probe 10 is mounted on a measuring device such as the CMM 30, a kinematic mount is preferably used as the means. Thereby, the mounting state of the probe 10 can be made exactly the same as that at the first time, that is, at the time of calibration. The kinematic mount is, for example, a mount including three balls 70 arranged at equal intervals on the measuring device and three inner surface inclined holes 81 formed on the probe 10. Since the pin 80 is provided, the hole 81 into which the three balls 70 are fitted at the time of remounting is the same hole as the tip fitted at the time of calibration.

[Intelligent probes and their types]
In addition, the range that can be called an intelligent probe includes a probe of a higher type than the probe 10 described above. For example, it is an end effector capable of storing not only parameters such as probe types and attributes but also data such as joint attributes in its internal memory. With this type of probe, changing the mounting arm itself is a process of learning the used arm, so there is no need to provide information about the arm that has been mounted once. In that sense, this probe is a genuine “plug and play” type probe.

  Further, the probe itself is not limited to the contact type end effector. An active sensor or a dynamic sensor may be provided, or a combination of a plurality of sensors may be used. For example, a temperature sensor can be embedded in a contact-type end effector, and the temperature of the inspection object can be measured with the temperature sensor to draw an isotherm. Moreover, the contact time and contact point on the measurement surface can be notified from the probe with temperature sensor to the system. Note that other types of sensors, such as means for detecting pressure, resistance, capacitance, light, magnetism, electromagnetics, radiation, sound, etc., can also be incorporated as physical transducers.

  As an example, consider adding a component temperature measurement system to the CMM arm. This can be achieved by incorporating an infrared non-contact type temperature measurement system into the tip of the CMM arm or a probe, or by incorporating a high-speed temperature sensor at the probe end that can measure the component temperature with only a few msec contact. can do. Whichever form is adopted, according to the present invention, temperature data in which data indicating a part temperature is associated with data indicating a part to be measured can be collected. Furthermore, since the temperature data is linked in real time with the measurement data for the part, they can be analyzed later. For example, the temperature characteristics of the part can be obtained in CAD, or temperature compensation data for measurement data can be generated. In particular, large parts may be measured in large-scale equipment industries and the like. For example, in a large part such as an aircraft wing, even if a part thereof is exposed to sunlight, the other part is in the shade. Moreover, it takes a long time to measure such a large part. If it takes several hours or more, the temperature changes during that time. Even in such a case, according to the present invention, temperature data can be automatically collected for each measurement. That is, it is possible to derive temperature characteristics based on temperature data and for each measurement site, and to perform temperature compensation based on the temperature data. As described above, the temperature data and the measurement data can be collected simultaneously by the component temperature measurement system added to the arm, and can be used. This is in contrast to conventional component temperature measurement methods that are typically performed using a separate device at each point in time.

  12 and 13 show a third embodiment. In the present embodiment, the CMM components are connected using a wireless connection unit indicated by “W” in the drawing. This wireless connection portion W is useful for connection between the probe end 10a, the main body of the probe 10 and the CMM arm 20, and connection between any members that do not require wiring between them, such as between the CMM 30 and the laptop computer. is there. The wireless standards that can be used will be described below, but any wireless standard or frequency may be used as long as it is appropriate.

  As a radio technology that can be used in the intelligent probe 10, there is firstly a radio frequency identification (RFID) technology. RFID technology is an automatic identification method that stores and remotely retrieves data using devices called RFID tags or transponders. An RFID tag is an object that is attached or interpolated to an article, animal, or person for identification using radio waves, and some of them can be read from a location several meters away or outside the line-of-sight range of the reader.

  Usually, an RFID tag is composed of at least two parts. The first component is an IC, which has a function of storing and processing information and a function of modulating / demodulating a signal (of radio frequency). Other special functions can be provided. The second component is an antenna for transmitting and receiving the signal. In addition, since the so-called chipless RFID technology can individually identify a tag without an IC, the tag can be attached to the object by an inexpensive method called direct printing on the identification object (than conventional tags). This type of tag also corresponds to the memory referred to in this application.

  As the wireless technology that can be used in the intelligent probe 10, there are the followings. However, other wireless standards or frequencies can be used.

  A second wireless technology that can be used is a wireless local area network (WLAN) as defined by IEEE 802.11. 802.11, which is a standard adopted by the Institute of Electrical and Electronics Engineers (IEEE; registered trademark (hereinafter omitted)) in 1997, consists of a group of specifications related to WLAN technology. It defines the wireless connection interface between wireless clients.

The specifications belonging to the 802.11 family include:
802.11 ... Specifies a WLAN that performs 1 or 2 Mbps transmission in the 2.4 GHz band according to frequency hopping spread spectrum (FHSS) or direct spread spectrum spread (DSSS);
802.11a is an extension of 802.11 and defines a WLAN that performs 54 Mbps transmission in the 5 GHz band according to an orthogonal frequency division multiplexing (OFDM) coding scheme rather than FHSS or DSSS;
802.11b (also known as 802.11 high-rate or Wi-Fi (registered trademark; not shown)) ... Extension to the original 802.11 standard to provide a wireless function comparable to Ethernet (registered trademark; not shown) A specification adopted in 1999 as a version, which prescribes a WLAN that performs 11 Mbps transmission (or 5.5, 2 or 1 Mbps decelerated transmission) in the 2.4 GHz band exclusively according to DSSS;
• 802.11g: A specification that defines a WLAN that uses OFDM, which is adopted in 802.11a as a modulation method, for data communication speedup and performs 54 Mbps transmission in the 2.4 GHz band. 802.11g is set up. An existing computer or terminal can reduce the transmission rate to 11 Mbps, so that 802.11b devices and 802.11g devices can coexist on the same network;
Besides these, there are branch numbering specifications such as e, f, h, i, j, k, m, and n. They specify details such as safety, interoperability, interference elimination, and documentation. The most widely used is 802.11g.

  A third wireless technology that can be used is a wireless personal area network (WPAN) as defined by IEEE 802.15. 802.15 is a communication specification for WPAN adopted by the IEEE Standards Committee (IEEE-SA) shortly after entering 2002. The IEEE 802.15 working group roughly classifies 802.15 into two types, and the low-speed version is called TG4 and the high-speed version is called TG3. The data transmission rate supported by version TG4 is 20 or 250 kbps, and the data transmission rate supported by version TG3 is in the range of 1.1 to 55 Mbps. 802.15.4 or ZigBee (registered trademark; hereinafter omitted) belongs to TG4, and 802.15.1 or Bluetooth (registered trademark; hereinafter omitted) belongs to TG3. ZigBee is mainly used for remote sensors.

  The other Bluetooth is a short-range wireless communication technology using electromagnetic waves, and its aim is to eliminate the use of cables. In other words, 802.11b (Wi-Fi) provides a connection means that eliminates the need for Ethernet wiring in the home or office, whereas Bluetooth provides a universal serial bus (USB) or a parallel cable for printers. A means to make it unnecessary is provided. Further, other short distance wirings such as a cable for connecting a headset, a keyboard, a mouse, etc. to a personal digital assistant (PDA), a mobile phone, etc. can be made unnecessary by Bluetooth. Devices that can use Bluetooth can communicate ad hoc via a short-range communication network called a piconet. A piconet is automatically formed when Bluetooth devices approach within a certain distance.

  In Bluetooth, it is necessary to assign a unique address (BD ADDR) to each Bluetooth device. Of these, the portion assigned by IEEE is called an organization unique identifier (OUI), and the portion assigned by the manufacturer is called an extended identifier (EI), both of which have a length of 24 bits. Since the length of the EI is 24 bits, the manufacturer can allocate 16 million BD ADDR to one OUI block. The raw data rate in Bluetooth is 1 Mbps in version 1.1, and 3 Mbps in version 2.0 + extended data rate (EDR). The range over which Bluetooth can communicate is at least 1 m (3 feet) for class 3 (1 mW), at least 10 m (30 feet) for class 2 (2.5 mW), and at least 100 m (300 feet) for class 1 (100 mW). Therefore, at least the suboptimal choice for implementing the present invention is to use a combination of IEEE 802.11b / g and Bluetooth.

  As described above, according to the probe interface according to the embodiment of the present invention, it is possible to set the reference potential to 0 V (common power supply), use a programmable power supply with digital linear feedback, and perform serial data transmission. it can. For example, communication by an intelligent probe is performed by serial data transmission, and feedback to the Renishaw probe switch is executed by a power supply pin. By using the power supply pin, as described above, the required energy can be supplied to other active probes.

  In addition, those who are skilled in this technical field (so-called persons skilled in the art) know that a computer network or a distributed information processing environment is constructed by deploying a device such as a computer as a client or server. be able to. In that regard, the method described herein or in the claims (hereinafter “the method”) may be performed on any computer, and the device described in the specification or claims. (Hereinafter “this device”) can be realized by any computer. That is, in the computer, several applications and processes can be executed by using several memories or storage units. Therefore, the method can be implemented or the apparatus can be realized by using them. The same is true for server or client computers dispersed in a network environment or a distributed information processing environment, and remote and local storage used by those computers. Furthermore, the present method can also be executed or realized by a stand-alone information processing apparatus that utilizes the programming language processing, interpretation, and execution functions and generates, receives, and transmits data through a remote or local service.

  There are many general-purpose or dedicated information processing systems and environments or apparatuses that can execute this method or implement this apparatus. Among known information processing systems and environments or apparatuses suitable for execution of the method or implementation of the apparatus are, for example, personal computers (PCs), server computers, handheld devices, laptop devices, multiprocessor systems, There are systems and devices such as a microprocessor-based system, a network PC, a minicomputer, a mainframe computer, and a distributed information processing environment that is an arbitrary combination thereof.

  In order to execute this method, a plurality of computer executable instructions may be described in context, and the description, for example, a program module may be executed on the computer. A program module here is typically a routine, program, object, component, data structure, etc., that is, one that can complete a certain task or represent a certain abstract data set by its execution. is there. For example, in order to execute this method or realize this apparatus in a distributed information processing environment connecting various power plants or power generation facilities, information processing remotely connected via a communication network or other transmission medium Such a program module may be executed on the apparatus. In a typical distributed information processing environment, program modules, routines, data, and the like are stored in a local computer storage medium, a remote computer storage medium, or a memory storage device as an example thereof. be able to. Sharing of computer resources and services in a distributed information processing environment is performed by direct exchange between a computer and a system. Through the exchange, resources and services such as various information, cache storage, and file disk storage can be shared. Performing distributed information processing by taking advantage of such network connectivity will dramatically increase the information processing capability of the client and bring benefits to the entire company. In this regard, applications, objects or resources that can be used to implement the method or implement the device can be interspersed on various devices.

  A computer program for executing this method can be stored in a distribution medium such as a CD-ROM and distributed widely to users. The program can be copied onto an intermediate storage medium such as a hard disk. When it is desired to execute the program, the program may be loaded from the distribution medium or the intermediate storage medium into the execution computer memory. The computer then begins to function according to the method and as the device.

  The term “computer-readable medium” is a concept that encompasses any medium or device that can store a computer program for executing the method, such as a distribution medium, a storage medium, or a memory in a computer, so that the computer can read it. .

  Therefore, this method can be executed by hardware, software, or a combination thereof. That is, the present method or apparatus, or specific embodiments or components thereof, can be realized by program codes or instructions, and the codes or instructions can be provided by a tangible medium. When program code is loaded and executed from a tangible computer readable medium, such as a tangible medium such as a floppy disk, CD-ROM, or hard disk, onto a machine such as a computer, the machine executes the method or The device functions as a device. Furthermore, the machine used to execute the program code, for example, a programmable computer, is usually a processor, a storage medium readable by the processor (which may be a volatile memory, a non-volatile memory, or a storage element), one or more. Input devices and one or more output devices. For example, the program (s) for executing the method in the data processing or realizing the apparatus may be created in a procedural or object-oriented high-level programming language that can be understood by a computer system. Alternatively, it can be created using machine language. In any case, the languages can be compiler languages or interpreter languages, and can be combined with hardware embodiments.

  Further, communication may be performed when executing the method or realizing the apparatus. For example, the program code may be transmitted via a transmission medium such as an electric wiring / cable or an optical fiber, and the code may be loaded and executed on a receiving machine. The receiving side is a machine equipped with the signal processing function exemplified above, such as EPROM, gate array, programmable logic device (PLD), client computer, etc., and functions as this apparatus by executing this method. It becomes. That is, when the program code is executed on, for example, a general-purpose processor, the machine on which the processor is mounted becomes a unique device that exhibits the functions according to the present method and apparatus. Furthermore, the various storages used to execute the method and implement the apparatus are also typically implemented by a combination of hardware and software.

  Furthermore, various modifications or replacements can be made to the above-described embodiments without departing from the spirit and technical scope of the present invention. That is, the above description of the present invention is for illustrative purposes only and is not intended to be limiting or limiting.

  Also, in the present specification, an embodiment is shown for explaining the present invention and its “best mode”. A so-called person skilled in the art will be able to implement the present invention based on the description. Please refer to the appended claims for matters requiring patenting, ie, the technical scope of the present invention. Apparatuses, methods, and products other than those described above may be included in the technical scope as long as a so-called person skilled in the art can conceive based on the description in the present application. At least in the case where the constituent element falls under the description of the scope of claims of the present application, and in the wording, the constituent element is different from the description of the scope of claims of the present application, but the difference is not essential. Or, if so authorized by the judiciary, such devices, methods and products should be recognized as within the scope of the present invention.

  Furthermore, those skilled in the art will appreciate that the components of the embodiments of the present invention can be interchanged. Similarly, a so-called person skilled in the art will be able to mix the various components described above and their known equivalents without any inconsistency.

  In describing preferred embodiments of the present invention, specific terms are used for explanation only. It should be understood that the description in other terms does not depart from the spirit or technical scope of the invention described in the appended claims. That is, the description of the embodiment in the present application should be recognized as a description for explanation in every sense, and is not intended to be limited or limited. Any modification that falls within the spirit and scope of the present invention should be recognized as belonging to the technical scope of the present invention.

Claims (29)

A removable probe for a coordinate measuring machine,
Including an intelligent probe body having a probe end;
The intelligent probe body is
A memory for storing probe data corresponding to at least one of the removable probe and the coordinate measuring machine;
A connecting part for connecting the probe body and the memory to the arm of the coordinate measuring machine, and an electrical connecting part for performing communication between the memory and the arm by a wired or wireless method;
With
The probe data includes calibration data of the intelligent probe, the probe end, and the coordinate measuring machine in which a combination of the intelligent probe, the probe end, and the coordinate measuring machine is uniquely identified. Detachable probe. The detachable probe according to claim 1,
A detachable probe in which the coordinate measuring machine stores calibration data indicating a calibration state of the detachable probe with respect to the coordinate measuring machine. A detachable probe according to claim 2, wherein
The calibration data further indicates a plurality of calibration states in a plurality of connectable combinations of each of a plurality of the removable probes and the coordinate measuring machine,
Each of the plurality of calibration states is unique to one of a plurality of connectable combinations of each of the plurality of removable probes and the coordinate measuring machine.
Detachable probe. A detachable probe according to claim 2, wherein
The calibration data further includes a probe end diameter, a thermal expansion coefficient, a probe type, a coordinate offset, or 6 degrees of freedom of the probe body when connected to the probe body itself or the coordinate measuring machine. Possible probe. The detachable probe according to claim 1,
A removable probe in which the probe body stores calibration data indicating a calibration state of the removable probe with respect to the coordinate measuring machine. The removable probe according to claim 5, wherein
The calibration data further indicates a plurality of calibration states in a plurality of connectable combinations of the removable probe and each of a plurality of coordinate measuring machines,
The removable probe wherein each of the plurality of calibration states is unique to one of a plurality of connectable combinations of the removable probe and each of the plurality of coordinate measuring machines. The removable probe according to claim 5, wherein
The calibration data further includes a probe end diameter, a thermal expansion coefficient, a probe type, a coordinate offset, or 6 degrees of freedom of the probe body when connected to the probe body itself or the coordinate measuring machine. Possible probe. The detachable probe according to claim 1,
A detachable probe, wherein the one or more attributes of the detachable probe include dimensional or characteristic data of the probe body and / or the probe end. The detachable probe according to claim 1,
The removable probe further comprises one of a resistance sensor, a capacitance sensor, a magnetic sensor, an electromagnetic sensor, or a radiation sensor. The detachable probe according to claim 1,
The detachable probe in which the coordinate measuring machine recognizes each of the connected detachable probes by reading information from the detachable probe connected to the coordinate measuring machine using a wireless system. . The removable probe according to claim 10, wherein
A removable probe, wherein the wireless system comprises an RFID system, a WLAN system, a WPAN system, or a Bluetooth system. A method of using a coordinate measuring machine with a plurality of removable probes,
Storing data in each of data rewritable memories provided in the plurality of detachable probes, wherein the stored data is unique to each of the detachable probes; and the probe Calibration data indicating the calibration status of
Connecting one of the plurality of removable probes to the coordinate measuring machine;
Automatically recognizing one of the plurality of removable probes connected to the coordinate measuring machine by reading the serial number of the connected removable probe;
Including a method. The method of claim 12, comprising:
The method further comprises the step of storing calibration data indicative of one calibration state of the plurality of removable probes connected to the coordinate measuring machine in the coordinate measuring machine. The method of claim 12, comprising:
The step of automatically recognizing the step of automatically recognizing one of a plurality of removable probes connected to the coordinate measuring machine by reading a serial number of the connected removable probe using a wireless system. Including a method. A method of using a removable probe together with a plurality of coordinate measuring machines,
A step of storing data in each of data rewritable memories provided in the removable probe, wherein the stored data indicates a serial number unique to the removable probe and a calibration state of the probe; Calibration data and steps,
Connecting the removable probe to one of the plurality of coordinate measuring machines;
Automatically recognizing the removable probe connected to one of the plurality of coordinate measuring machines by reading the serial number of the connected removable probe;
Including a method. The method of claim 15, comprising:
The method, wherein the stored data includes calibration data indicating a calibration status of the removable probe connected to one of the plurality of coordinate measuring machines. The method of claim 15, comprising:
In the automatic recognition step, the removable probe connected to one of the plurality of coordinate measuring machines is automatically recognized by reading the serial number of the connected removable probe using a wireless system. A method comprising the steps of: A coordinate measuring machine,
Arm,
A probe having a probe body connected to the arm, wherein the probe end measures one or more points on an object in one or more dimensions with or without contact with the object Having a probe;
A processor that processes one or more measured points on the object and determines dimensional coordinates of at least a portion of the measurement object;
A memory for storing information, wherein the stored information includes the processed, measured one or more points on the object;
A temperature sensor connected to the arm or the probe, wherein the temperature sensor is a temperature of the one or more points of at least a portion of the object measured in one or more dimensions by the probe; A temperature sensor for measuring
A coordinate measuring machine in which the memory stores measured temperatures of one or more points of at least a part of the object measured in one or more dimensions by the probe. The coordinate measuring machine according to claim 18,
A coordinate measuring machine, wherein the temperature sensor connected to the probe includes a temperature sensor attached to the probe. The coordinate measuring machine according to claim 18,
A coordinate measuring machine, wherein the temperature sensor connected to the probe includes a temperature sensor embedded in the probe. The coordinate measuring machine according to claim 18,
A coordinate measuring machine, wherein the temperature sensor includes an infrared non-contact temperature sensor. The coordinate measuring machine according to claim 18,
A coordinate measuring machine, wherein the temperature sensor includes a contact-type temperature sensor that contacts the object and measures the temperature of the object. The coordinate measuring machine according to claim 18,
A coordinate measuring machine, wherein the processor processes measured temperatures at one or more points of at least a portion of the object measured in one or more dimensions by the probe. A coordinate measuring machine according to claim 23,
The processor uses at least one processed point of one or more points of the object measured in one or more dimensions by the probe to process at least a part of the object to be measured. A coordinate measuring machine that compensates at least one of the measured one or more points on the object based on a dimensional change of at least a part of the object to be measured due to a thermal expansion coefficient. A coordinate measuring machine according to claim 23,
The processor uses at least one processed point of one or more points of the object measured in one or more dimensions by the probe to process at least a part of the object to be measured. A coordinate measuring machine that compensates in real time for at least one of the measured one or more points on the object based on a dimensional change of at least a part of the object to be measured due to a coefficient of thermal expansion. The coordinate measuring machine according to claim 18,
The stored information includes one or more attributes of the probe and a serial number that identifies the probe for the coordinate measuring machine when the probe body is connected to the arm of the coordinate measuring machine. Including coordinate measuring machine. The coordinate measuring machine according to claim 18,
The coordinate measuring machine, wherein the stored information includes calibration data indicating a calibration state of the probe with respect to the coordinate measuring machine. A removable probe for a coordinate measuring machine,
A probe body;
A memory for storing rewritable probe data relating to the removable probe;
A connection part for connecting the probe body to the arm of the coordinate measuring machine,
The probe data includes one or more attributes of the removable probe and a serial identifying the removable probe relative to the coordinate measuring machine when the probe body is connected to an arm of the coordinate measuring machine. A removable probe including a number. The removable probe according to claim 28, wherein
A removable probe, wherein the removable probe further comprises one of a resistance sensor, a capacitance sensor, an optical sensor, a magnetic sensor, an electromagnetic sensor, a radiation sensor, or an acoustic sensor.

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